JP4223998B2 - Continuous rice cooker - Google Patents

Description

  The present invention relates to a continuous rice cooking apparatus capable of appropriate continuous rice cooking.

Conventionally, for example, an elongate tunnel-shaped heating chamber having an outside air intake in the center of the bottom, a chain conveyor type conveying means for moving the rice cooker in the conveying direction through the heating chamber, and heating while taking outside air into the heating chamber from the outside air intake A continuous rice cooker including a gas burner that heats an indoor rice cooker is known (see, for example, Patent Document 1).
JP-A-56-104623

  However, in the conventional continuous rice cooker, since the secondary air is required to generate a flame at the gas projection hole in the heating chamber, the heating chamber is communicated to the outside, for example, from the outside air intake port. The outside air that enters the heating chamber enters more than is used to generate flames, and the temperature in the heating chamber changes by shaking the flame or cooling the hot air in the heating chamber, so there is a risk that stable continuous rice cooking work cannot be performed. .

  This invention is made | formed in view of such a point, and it aims at providing the continuous rice cooking apparatus which can perform the stable continuous rice cooking operation | work.

Continuous cooking apparatus comprising a tunnel-shaped heating chamber, and conveying means for moving the conveying direction of the cooking pot through the heating chamber, the cooking pot of the heating chamber without introducing the outside air into the heating chamber An infrared burner for heating , the rice cooker has left and right side portions, and a handle portion protruding from the upper end portion of each side portion and having a convex portion formed on the lower surface side, The left and right chain portions that convey the rice cooker while supporting the convex portion of the handle portion, the infrared burner includes a first infrared burner portion that heats a bottom surface of the rice cooker, and the rice cooker A second infrared burner that heats the bottom corner, and the heating chamber covers a lower covering portion that covers the lower side of the moving rice cooker and an upper portion that covers the upper side of the moving rice cooker. The lower cover part is defined by a cover part. The burner attached plate portion having a substantially U-shaped cross section, and the first infrared burner portion and the second infrared burner portion are attached to the burner attached plate portion, respectively, and the upper cover portion is formed in the width direction. Consists of a heat insulating induction cover portion formed with a hot air discharge port penetrating vertically in the center, and the lower surface portion of this heat insulation induction cover portion is formed in an inclined surface shape so that hot air flows toward the hot air discharge port side In the heating chamber, the hot air from the infrared burner rises along the left and right side portions of the rice cooker, and then the portion of the handle portion where the convex portion is not formed and the chain portion. The air flows to the upper part of the lid through the gap between them, and then the hot air flows along the lower surface part of the heat insulating guide cover part between the lower surface part and the lid toward the hot air outlet side. intended to be That.

The continuous rice cooker according to claim 2 is the continuous rice cooker according to claim 1, wherein the heating chamber has a rice cooker inlet for putting the rice cooker into the heating chamber, and at the time of continuous rice cooking work, Almost the whole is closed with a rice cooker .

According to the invention which concerns on Claim 1, since the infrared burner which heats the rice cooking pot in a heating chamber without taking in outside air in a heating chamber is provided, stabilization of the temperature in a heating chamber can be aimed at, Therefore, the stable continuous rice cooking I can work .

According to the invention according to claim 2 , since the substantially entire rice cooker inlet of the heating chamber is closed by the rice cooker during continuous rice cooking work, it is possible to prevent the hot air in the heating chamber from escaping from the rice cooker inlet to the outside of the heating chamber, More stable continuous rice cooking work can be done.

  One embodiment of the continuous rice cooker of the present invention will be described with reference to the drawings.

  In FIG. 1, 1 is a continuous rice cooker, and this continuous rice cooker 1 performs continuous rice cooking by heating with a heating means 4 while continuously moving the rice cooker 2 in the conveying direction with a chain conveyor type conveying means 3. Is.

  As shown in FIG. 5 and FIG. 6, the rice cooker 2 has a substantially rectangular parallelepiped shape having an opening 6 on the top surface, has a bottom surface portion 7 having a substantially rectangular plate shape, and a peripheral end portion of the bottom surface portion 7. Is provided with a bottom side corner portion 8 having a substantially arc-shaped cross section, and a steeply sloped side surface portion 9 protrudes obliquely upward from the upper end of the bottom side corner portion 8. A substantially plate-like handle portion 10 protrudes in the horizontal direction from the upper end portions of the left and right side surface portions 9 on both sides in the transport direction, and a plurality of, for example, two convex portions 10a are formed on the lower surface side of the handle portion 10. A substantially plate-like projecting portion 11 projects in the horizontal direction from the upper end portions of the front and rear side surface portions 9 with respect to the transport direction.

  In the heating chamber 13, the baking chamber 14, and the steaming chamber 15, the plurality of rice cookers 2 have protruding portions 11 that face each other of the rice cookers 2 that are closed by the lid 12 and whose opening 6 is closed in the conveying direction. Transported by a chain portion 3a that is rotated by a drive portion such as a motor (not shown) in a state where the protruding portions 10a of the handle portions 10 are in contact with each other and supported by the chain portions 3a on the left and right sides of the transport means 3. Is done. The chain portion 3a rotatably disposed on both the left and right sides in the heating chamber 13 is a roller chain composed of, for example, an inner link and an outer link.

  On the other hand, the heating means 4 includes an infrared burner 21 that heats the rice cooker 2 moving in the heating chamber 13 without taking outside air into the tunnel-like heating chamber 13 extending in the horizontal direction.

  As shown in FIG. 2, the infrared burner 21 has a structure that does not require secondary air, and is disposed facing the bottom surface of the heating chamber 13. That is, for example, the infrared burner 21 is positioned so as to face the bottom surface portion 7 of the rice cooker 2, and the first infrared burner portion 22 that heats the bottom surface portion 7, and the bottom side corner portions 8 on both the left and right sides of the rice cooker 2. It has left and right second infrared burner portions 23 which are positioned so as to face each other and heat the bottom side corner portion 8. Each of the infrared burners 22 and 23 is, for example, arranged in parallel along the transport direction. The gas burner 25, the gas supply pipe 26 that supplies gas to the gas burner 25, and the ceramic plate 27 that is heated by the flame of the gas burner 25. Etc. Note that the temperature in the heating chamber 13 can be adjusted by stopping the combustion of a part of the infrared burners 22 and 23 arranged in parallel along the conveying direction.

  Here, as apparent from FIG. 2, the tunnel-shaped heating chamber 13 includes a lower cover portion 31 that covers the lower side of the rice cooker 2 that is moving in the heating chamber 13, and a moving portion in the heating chamber 13. A partition is formed with an upper cover portion 32 covering the upper side of the rice cooker 2.

  The lower cover portion 31 is composed of a burner attached plate portion 33 having a longitudinal direction and a substantially U-shaped cross section having a longitudinal direction in the transport direction. The burner attached plate portion 33 includes the first infrared burner portion 22 and the second infrared burner portion 22. Infrared burner portions 23 are respectively attached. The burner mounting plate portion 33 includes a substantially horizontal bottom plate 34, an inclined plate 35 that protrudes obliquely upward from the left and right sides of the bottom plate 34, and a vertical side plate 36 that protrudes upward from the inclined plate 35. is doing.

  The upper cover portion 32 has a longitudinal shape having a longitudinal direction in the transport direction, a hot air discharge port 38 formed vertically through the central portion in the width direction, and a heat insulating guide cover portion 39 filled with a heat insulating material (not shown) inside. It is composed of. In addition, the lower surface part of the heat insulation guide cover part 39 is formed in the inclined surface shape so that a hot air may flow toward the center hot air discharge port 38 side.

  The steaming chamber 15 and the heating chamber 13 are partitioned vertically by the heat insulating induction cover portion 39, and the lower heating chamber 13 and the upper steaming chamber 15 are communicated with each other through the hot air discharge port 38. That is, the tunnel-shaped heating chamber 13 is a hot air discharge port 38 at the center in the upper width direction that discharges the hot air in the heating chamber 13 by the infrared burner 21 to the outside of the heating chamber 13, that is, into the upper steaming chamber 15. It has a shape opened only by the rice cooker inlet 40 that is an opening and the communication port 41 that is the opening at the other end in the longitudinal direction (that is, the pot carry-out port into the baking chamber).

  In the standby space (non-heating standby position) located near the rice cooker inlet 40, the burner attached plate portion 33 to which the infrared burner 21 is not attached is disposed as the lower cover portion 31 up to the vicinity of the rice cooker inlet 40, Further, a heat insulating guide cover 39 is disposed as the upper cover portion 32. And the outer wall surface part 43 where the rice cooker inlet 40 opened is configured to cover at least the vicinity of the rice cooker inlet 40 corresponding to the upper cover part 32 covering at least the upper side of the rice cooker 2 so that the rice cooker 2 can pass through. For this reason, at the time of continuous rice cooking work, substantially the entire rice cooker inlet 40 for putting the rice cooker 2 into the heating chamber 13 is closed by the non-heated rice cooker 2 located in the standby space, and the hot air in the heating chamber 13 is heated. The rice cooker entrance 40 does not easily escape from the heating chamber 13.

  As shown in FIG. 4, the baking chamber 14 that communicates with the tunnel-shaped heating chamber 13 includes a lower covering portion 51 that covers the lower side of the rice cooker 2 that is moving in the baking chamber 14, and baking A compartment is formed by an upper cover 52 that covers the upper side of the rice cooker 2 that is moving in the chamber 14.

  The lower cover portion 51 is configured by a cover plate portion 53 made of, for example, iron having a longitudinal shape having a longitudinal direction in the transport direction and having a substantially U-shaped cross section, and hot air (outside air) is baked into the cover plate portion 53. A plurality of intakes 54 are formed for taking in. The cover plate portion 53 includes a horizontal bottom plate 55 and a vertical side plate 56 protruding upward from the left and right sides of the bottom plate 55.

  A baking infrared burner 57 for heating the covering plate portion 53 is disposed below the bottom plate 55 of the covering plate portion 53. The baking infrared burner 57 is connected to the gas burner 58 and the gas burner 58. A gas supply pipe 59 for supplying gas and a ceramic plate 60 heated by the flame of the gas burner 58 are used.

  On the other hand, the upper cover portion 52 has a longitudinal shape having a longitudinal direction in the conveying direction and a hot air discharge port 61 penetrating vertically in the central portion in the width direction, similarly to the upper cover portion 31 that defines the heating chamber 13. The heat insulating guide cover portion 62 is filled with a heat insulating material (not shown), and the lower surface portion of the heat insulating guide cover portion 62 is inclined so that hot air flows toward the hot air outlet 61 side of the center. Is formed. Then, the steaming chamber 15 and the baking chamber 14 are divided into upper and lower portions by the heat insulating guide cover 62, and the lower baking chamber 14 and the upper steaming chamber 15 are communicated with each other through the hot air outlet 61.

  The steaming chamber 15 has a discharge port 65 at the top for discharging hot air in the steaming chamber 15 to the upper side of the continuous rice cooker 1 by driving the exhaust fan 64.

  Next, the operation and the like of the one embodiment will be described.

  A plurality of rice cookers 2 into which a predetermined amount of rice and water has been introduced, the opening 6 is closed with a lid 12 and the protruding portions 11 of the rice cooker 2 adjacent to each other in the conveying direction are in contact with each other without any gaps. In a state where the ten convex portions 10a are supported by the chain portion 3a of the transport means 3, the chain portion 3a rotates and moves at a desired speed in the transport direction.

  In the heating chamber 13, the rice cooker 2 is heated by the infrared burner 21 including the first infrared burner unit 22 and the second infrared burner unit 23, and a “boil” process is performed on the rice in the rice cooker 2.

  At this time, since the outside air does not flow into the heating chamber 13, the temperature in the heating chamber 13 is stabilized without affecting the combustion state of the infrared burner 21 or cooling the hot air in the heating chamber 13. Yes.

  As shown in FIGS. 2 and 5, in the heating chamber 13, the hot air from the infrared burner 21 rises along the left and right side portions 9 of the rice cooker 2, and then the convex portions in the left and right handle portions 10. Through the gap 70 between the portion where 10a is not formed and the chain portion 3a, it goes around the lid 12. Thereafter, the hot air flows along the lower surface portion of the heat insulating induction cover portion 39 through the space between the lower surface portion and the upper surface portion of the lid 12 toward the hot air discharge port 38, and is steamed from the hot air discharge port 38. It is discharged into the chamber 15. In this way, in the heating chamber 13, the entire rice cooker 2 is heated so as to be wrapped with the hot air flowing upward, so that there is no heating unevenness in the entire pot and the “cooking” process is performed efficiently.

  Next, in the baking chamber 14, the rice cooker 2 is heated by the heat from the cover plate portion 53 and the hot air taken in from the intake 54, and the “baking” process is performed on the rice in the rice cooker 2. Done.

  As shown in FIGS. 4 and 5, in the baking chamber 14, the hot air taken in from the intake 54 rises along the left and right side portions 9 of the rice cooker 2, and then the left and right handle portions. 10 passes through the gap 70 between the portion where the convex portion 10a is not formed and the chain portion 3a, and wraps around the lid 12. Thereafter, the hot air flows along the lower surface portion of the heat insulating induction cover portion 62 between the lower surface portion and the upper surface portion of the lid 12 toward the hot air discharge port 61 side, and is steamed from the hot air discharge port 61. It is discharged into the chamber 15. In this way, even in the baking chamber 14, the entire rice cooker 2 is heated so as to be wrapped with hot air flowing upward, so that there is no uneven heating in the entire cooking pot and the "baking" process is performed efficiently.

  After such a “baking” process, the “steaming” process is performed in the steaming chamber 15 with hot air from the hot air discharge ports 38 and 61, and the rice cooker 2 after the “steaming” process continues from the rice cooker outlet 71. It is carried out of the rice cooker 1.

  And according to the said continuous rice cooking apparatus 1, the conveying means 3 which moves the rice cooker 2 in the conveyance direction through the tunnel-shaped heating chamber 13, and the inside of the heating chamber 13 without taking in outside air in the tunnel-shaped heating chamber 13 Therefore, the temperature inside the tunnel-shaped heating chamber 13 can be stabilized, and thus stable continuous rice cooking can be performed.

  Further, the hot air in the heating chamber 13 by the infrared burner 21 can be appropriately discharged into the steaming chamber 15 from the hot air discharge port 38 at the upper part of the heating chamber 13, and therefore, continuous rice cooking work can be performed efficiently.

  Further, during the continuous rice cooking operation, since substantially the entire rice cooker inlet 40 of the heating chamber 13 is closed by the rice cooker 2 located in the standby space, the hot air in the heating chamber 13 is transferred from the rice cooker inlet 40 to the outside of the heating chamber 13. Escape can be prevented, and continuous rice cooking can be performed more stably and efficiently.

  The continuous rice cooker 1 is not limited to the configuration in which the steaming chamber 15 is formed above the heating chamber 13. For example, a configuration in which the heating chamber is extended to make this extended portion a steaming chamber, or the steaming chamber itself is used. The structure etc. which do not have may be sufficient.

  In addition, for example, a heating chamber having a shape that does not have a baking chamber and a steaming chamber and is opened only at the hot air outlet at the center in the upper width direction, the rice cooker inlet at one end in the longitudinal direction, and the rice cooker outlet at the other end in the longitudinal direction. The continuous rice cooker 1 etc. of the structure which has may be sufficient.

It is side view sectional drawing which shows one Embodiment of the continuous rice cooking apparatus of this invention. It is front view sectional drawing of the heating chamber part of a continuous rice cooker same as the above. It is front view sectional drawing of the pot inlet part of a continuous rice cooker same as the above. It is front view sectional drawing of the baking chamber part of a continuous rice cooker same as the above. It is a side view which shows the rice cooking pot currently conveyed by the conveyance means of a continuous rice cooker same as the above. It is a top view which shows the rice cooking pot in conveyance same as the above.

Explanation of symbols

1 continuous rice cooker 2 rice cooker 3 transport means
3a Chain part 7 Bottom face part 8 Bottom corner part
9 sides
10 Handle part
10a convex part
12 lids
13 Heating chamber
21 Infrared burner
22 First infrared burner
23 Second infrared burner
31 Lower cover
32 Top cover
33 Burner mounting plate
34 Insulation induction cover
38 Hot air outlet
40 Rice cooker entrance
70 gap

Claims (2)

A tunnel-like heating chamber,
Conveying means for moving the rice cooker in the conveying direction through the heating chamber;
And a infrared burner for heating the cooking pot of the heating chamber without introducing the outside air into the heating chamber,
The rice cooker has left and right side portions, and a handle portion that protrudes from the upper end portion of each side portion and has a convex portion formed on the lower surface side,
The conveying means has left and right chain portions that convey the rice cooker in a state where the convex portion of the handle portion is supported.
The infrared burner has a first infrared burner portion that heats the bottom surface portion of the rice cooker, and a second infrared burner portion that heats the bottom corner portion of the rice cooker,
The heating chamber is partitioned by a lower cover portion that covers the lower side of the rice cooker being moved and an upper cover portion that covers the upper side of the rice cooker being moved,
The lower cover portion is configured by a burner attached plate portion having a substantially U-shaped cross section, and the first infrared burner portion and the second infrared burner portion are attached to the burner attached plate portion,
The upper cover portion is configured by a heat insulating guide cover portion in which a hot air discharge port penetrating vertically is formed in a central portion in the width direction, and the lower surface portion of the heat insulating guide cover portion is directed toward the hot air discharge port side. It is formed in an inclined surface shape to flow,
In the heating chamber, hot air from the infrared burner rises along the left and right side portions of the rice cooker, and then between the portion where the convex portion is not formed in the handle portion and the chain portion. The air flows around the lid through the gap, and then the hot air flows along the lower surface portion of the heat insulating guide cover portion between the lower surface portion and the lid toward the hot air outlet side. A continuous rice cooker characterized by The heating chamber has a rice cooker entrance for putting the rice cooker into the heating chamber,
During continuous cooking operation, continuous rice cooking system according to claim 1, wherein substantially the entire said cooking pot inlet, characterized in that it is closed by cooking pot.

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